US6871859B2 - Toolholder and insert arrangement with a shrink fit coupling - Google Patents

Toolholder and insert arrangement with a shrink fit coupling Download PDF

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Publication number
US6871859B2
US6871859B2 US10/168,375 US16837502A US6871859B2 US 6871859 B2 US6871859 B2 US 6871859B2 US 16837502 A US16837502 A US 16837502A US 6871859 B2 US6871859 B2 US 6871859B2
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United States
Prior art keywords
shank
toolholder
receiving opening
insert
shank portion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
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US10/168,375
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English (en)
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US20030075879A1 (en
Inventor
Mikael Lundblad
Sven Engstrand
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Sandvik Intellectual Property AB
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Sandvik AB
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Assigned to SANDVIK AKTIEBOLAG reassignment SANDVIK AKTIEBOLAG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENGSTRAND, SVEN, LUNDBLAD, MIKAEL
Publication of US20030075879A1 publication Critical patent/US20030075879A1/en
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Assigned to SANDVIK INTELLECTUAL PROPERTY HB reassignment SANDVIK INTELLECTUAL PROPERTY HB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANDVIK AB
Assigned to SANDVIK INTELLECTUAL PROPERTY AKTIEBOLAG reassignment SANDVIK INTELLECTUAL PROPERTY AKTIEBOLAG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANDVIK INTELLECTUAL PROPERTY HB
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/008—Chucks; Expansion mandrels; Adaptations thereof for remote control with arrangements for transmitting torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1179—Retention by friction only, e.g. using springs, resilient sleeves, tapers using heating and cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/305—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/03—Cutting heads comprised of different material than the shank irrespective of whether the head is detachable from the shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip
    • Y10T279/17965—Drill type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30952—Milling with cutter holder

Definitions

  • the present invention relates to a toolholder and insert arrangement and, more particularly, to a toolholder and insert arrangement wherein an insert is coupled to a toolholder by a shrink fit coupling.
  • toolholders with replaceable cutting inserts are well known.
  • tool arrangements in which toolholders with replaceable cutting insert are used include drilling, milling, turning, and grinding operations.
  • Tools such as ball-nose end mills, drills, and grinding wheels can include cutting inserts having shanks made of extremely hard material, such as cemented carbide, while the toolholder is made of a more easily machinable material, such as tool steel.
  • the hard inserts tend to last longer than similar one-piece tools which must be made of a material suitable for machining.
  • the inserts are replaceable, the toolholder will typically be used for extended periods of time without replacement, even though inserts are replaced periodically.
  • the inserts are typically secured to the toolholder using some form of mechanical connection, such as a screw through the insert, or a set screw or other clamping arrangement.
  • some form of mechanical connection such as a screw through the insert, or a set screw or other clamping arrangement.
  • U.S. Pat. No. 4,293,253 and WO 96/06702 disclose toolholders and inserts having a mechanical connection wherein an insert is screwed into a toolholder.
  • a drawback to such conventional toolholder and insert arrangements is that the mechanical connection may fail and damage the toolholder or the insert, or both.
  • a mechanical connection component fails, unless a stock of mechanical connection components is maintained in addition to a stock of toolholders and inserts, the tool must be shut down until a new connection component can be obtained. This can result in undesired expense and loss of productivity.
  • the mechanical connection components often require specialized tools for connecting the cutting inserts to the toolholders. It is desirable to provide a toolholder and insert arrangement that avoids the need for separate mechanical connection components to secure the insert relative to the toolholder, and that avoids the need for specialized tools for securing the insert relative to the toolholder.
  • a toolholder and insert arrangement includes an insert having a cutting portion and a shank portion at a base of the cutting portion, and a toolholder having a first end attachable to a spindle and a second end having a shank-receiving opening.
  • the shank-receiving opening When the shank portion is not disposed in the shank receiving opening and the toolholder is at an ordinary room temperature, the shank-receiving opening is smaller than the shank portion, and upon heating of the toolholder to a predetermined temperature above the ordinary room temperature and above an ordinary operating temperature the shank-receiving opening expands to become at least as large as the shank portion and, upon cooling of the toolholder to a temperature below the predetermined temperature and after insertion of the shank portion in the shank-receiving opening, the shank-receiving opening shrinks to generally conform to a shape of the shank portion.
  • FIG. 1 is a partially cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention
  • FIG. 2 is a partially cross-sectional view of a toolholder and an insert arrangement according to another embodiment of the present invention
  • FIGS. 3A and 3B are side and top views of an insert for a toolholder and an insert arrangement according to an embodiment of the present invention
  • FIGS. 4A and 4B are bottom and side cross-sectional views of a toolholder and insert arrangement according to an embodiment of the present invention.
  • FIGS. 5A and 5B are side and top views of an insert for a toolholder and insert arrangement according to an embodiment of the present invention
  • FIGS. 6A and 6B are bottom and side cross-sectional views of a toolholder and insert arrangement according to an embodiment of the present invention.
  • FIGS. 7A and 7B are bottom and side cross-sectional views of a toolholder and insert arrangement according to an embodiment of the present invention.
  • FIG. 8A is a side cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 8B is a top view of the insert of FIG. 8A ;
  • FIG. 9A is a side cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 9B is a top view of the insert of FIG. 9A ;
  • FIG. 10A is a side cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 10B is a top view of the insert of FIG. 10A ;
  • FIG. 11A is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 11B is a top view of the insert of FIG. 11A ;
  • FIG. 12A is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 12B is a top view of the insert of FIG. 12A ;
  • FIG. 13A is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention and FIG. 13B is a top view of the insert of FIG. 13A ;
  • FIG. 14 is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention.
  • FIG. 15 is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention.
  • FIG. 16 is a side, cross-sectional view of a toolholder and insert arrangement according to an embodiment of the present invention.
  • Embodiments of a toolholder 21 and insert 23 according to an embodiment of the present invention are shown in cross-section in FIGS. 1 and 2 , showing a substantially truncated conical toolholder and a substantially circularly cylindrical toolholder, respectively.
  • the precise external shape of the toolholder 21 can, of course, be any suitable shape and is not limited to truncated conical or circularly cylindrical shapes.
  • the insert 23 includes a cutting portion 25 and a shank portion 27 at a rear base 29 of the cutting portion.
  • the insert defines a longitudinal center axis L.
  • the cutting portion 25 of the insert 23 is a ball-nose end mill portion but, if desired or necessary, may be any other desired rotating tool, such as a drill, a grinder, or the like.
  • the toolholder 21 preferably has a first end 31 attachable to a conventional spindle and a second end 33 having a shank-receiving opening 35 .
  • the shank-receiving opening is smaller than the shank portion.
  • the shank-receiving opening 35 expands to become at least as large as the shank portion 27 and permits insertion of the shank portion into the shank-receiving opening or removal of the shank portion from the shank-receiving opening.
  • the shank-receiving opening shrinks to generally conform to a shape of the shank portion.
  • an internal diameter ID of the shank-receiving opening 35 relative to an external diameter OD of the shank portion 27 is selected such that the internal diameter of the shank-receiving opening is smaller than the external diameter of the shank portion when the toolholder is at the ordinary room temperature and no shank is received in the shank-receiving opening, and the internal diameter of the shank-receiving open is smaller than the external diameter of the shank portion when the toolholder is at the ordinary operating temperature and no shank portion is disposed in the shank-receiving opening.
  • a predetermined temperature to which a toolholder 21 made of, for example, tool steel, might be heated should be approximately 300° C., possibly between 250° C. and 350° C., assuming that the ordinary room temperature of the shank 27 is approximately 20° C.
  • the internal diameter ID of the shank-receiving opening 35 when the toolholder 21 is at the ordinary room temperature, relative to an external diameter OD of the shank portion 27 is selected such that, when the shank portion is received in the shank-receiving opening and the shank-receiving opening has shrunk to generally conform to the shape of the shank portion and is at or below the ordinary operating temperature, the toolholder applies sufficient force to the shank to resist ordinary operating torsional forces T and turning moments M on the shank.
  • a relatively smaller diameter toolholder 21 will expand, in terms of percent expansion, approximately the same as a relatively larger diameter toolholder made of a material having the same coefficient of thermal expansion as the smaller toolholder when both toolholders are heated the same amount, because there is less material to expand in the smaller toolholder, the smaller toolholder will expand a lesser total amount than the larger toolholder. As a result, the smaller toolholder will likely not be able to grip a shank portion 27 with as much force as a larger toolholder when it contracts after heating.
  • FIGS. 3A-11B show another preferred mechanical structure for facilitating transfer of additional torque beyond that which is obtained solely from the shrink-fit coupling between the toolholder 21 and the insert 23 .
  • the embodiment shown in, for example, FIGS. 3A-3B involves providing a rear end 37 of the shank portion 27 remote from the cutting portion 25 with a longitudinally extending engagement portion 39 and providing the shank-receiving opening 35 , as seen in FIGS. 4A and 4B , with a corresponding engagement portion 41 in which the engagement portion 39 is received.
  • the engagement portion 39 and the corresponding engagement portion 41 are preferably in the shape of portions that can transmit rotational torque from the toolholder 21 to the shank portion 27 , such as non-circular portions and offset pins and pin-receiving openings.
  • the engagement portion 39 of the shank portion 27 preferably includes a half-circle shape as seen in FIGS. 3A and 3B .
  • the half-circle shape of the engagement portion 39 permits transmission of rotational forces from the corresponding engagement portion 41 ( FIGS. 4A-4B ) as a leading portion of the corresponding engagement portion rotates and contacts a rearward portion of the engagement portion of the shank 27 .
  • the half-circle shape of the engagement portion 39 offers the advantage of a simple method of manufacture.
  • a half-circle-shape of a corresponding engagement portion can be formed by machining or, for example, by attachment of a half-circular shape inside of the shank-receiving opening, such as by brazing, soldering, welding, mechanical fastening, adhesives, or the like.
  • the engagement portion is an integrated part of the toolholder.
  • a pin 41 instead of machining or brazing in a half-circle-shaped corresponding engagement portion, may be used.
  • the pin 41 is preferably fitted into a pin-receiving opening 410 formed in a bottom wall of the shank-receiving opening 35 .
  • the engagement portion 39 ′ may include one or more, preferably two, semicircles.
  • the corresponding engagement portion is preferably shaped to mate with the semicircle or semicircles.
  • the corresponding engagement portion for use with the insert shown in FIGS. 5A-5B may be in the form of a pin 41 p that extends substantially perpendicularly to the axis of the shank 27 and the shank-receiving opening 35 and adjacent a semi-circular portion or between two semi-circular portions to effectively mate with the semi-circular portions that form a pin-receiving opening.
  • a pin can, instead of extending perpendicularly to the axis of the shank 27 and the shank-receiving opening 35 as illustrated in FIGS. 6A and 6B , extend parallel to the axis of the shank and the shank-receiving opening, or even at some angle between parallel and perpendicular.
  • a parallel, perpendicular, or angled pin may be fixed to or removable from the toolholder 21 and/or the shank 27 , as desired or necessary, and more than one pin may be provided, as desired or necessary.
  • a pin 139 p that is an integrated part of the shank 27 and is received in a pin-receiving opening 141 o in the toolholder 21 is shown in FIGS. 7A and 7B , wherein the pin 139 p is off-center to facilitate transmission of torque.
  • engagement portions and corresponding engagement portions may, if desired or necessary, be reversed from the manner illustrated.
  • the corresponding engagement portion for use with the shank 27 illustrated in FIGS. 5A and 5B can be substituted for the engagement portion 39 ′ on the shank 27
  • the engagement portion can be substituted for the corresponding engagement portion in the shank-receiving opening 35 of the toolholder 21 .
  • FIGS. 8A-11B show further embodiments of the toolholder 21 and insert 23 arrangement wherein the shank 27 portion is provided with a non-circular engagement portion and the shank-receiving opening 35 is provided with a corresponding engagement portion illustrating several of the possible shapes of non-circular engagement portions.
  • FIG. 8A shows a toolholder 21 and insert 23 arrangement, FIG. 8B showing the insert alone, wherein the shank 27 is provided with a triangular engagement portion 239 and a corresponding triangular engagement portion 241 provided in the shank-receiving opening.
  • FIG. 9A shows a toolholder 21 and insert 23 arrangement, and FIG.
  • FIG. 9B shows the insert alone, wherein the shank 27 is provided with a star-shaped engagement portion 339 and a corresponding star-shaped engagement portion 341 provided in the shank-receiving opening.
  • FIG. 10A shows a toolholder 21 and insert 23 arrangement
  • FIG. 10B shows the insert alone, wherein the shank 27 is provided with a square or rectangular engagement portion 439 and a corresponding square or rectangular engagement portion 441 provided in the shank-receiving opening.
  • FIG. 11A shows a toolholder 21 and insert 23 arrangement
  • FIG. 11B showing the insert alone, wherein the shank 27 is provided with a hexagonal engagement portion 539 and a corresponding hexagonal engagement portion 241 provided in the shank-receiving opening.
  • non-circular corresponding engagement portions in the embodiments disclosed herein may be provided by any suitable technique.
  • the non-circular corresponding engagement portions may be provided by brazing elements in the shank-receiving opening to form non-circular shapes, or by machining the shank-receiving opening.
  • the cutting portion 25 is preferably larger in diameter than the shank portion 27 and the base 29 of the cutting portion proximate the shank portion includes a radial shoulder 43 .
  • an end of the toolholder 21 preferably includes a radial shoulder 45 against which the radial shoulder 43 of the cutting portion 25 abuts.
  • the radial shoulder 45 of the toolholder 21 and the radial shoulder 43 of the cutting portion 25 are preferably substantially the same size as each other.
  • the shoulder 43 on the cutting portion 25 facilitates avoiding inserting the shank portion 27 too deeply within the shank-receiving opening 35 .
  • the cutting portion 25 may have substantially the same diameter as the shank portion 27 .
  • the toolholder 21 may be any suitable shape. As seen in FIG. 1 , for example, the toolholder may be in the form of a truncated cone or, as seen in FIG. 2 , the toolholder may substantially circularly cylindrical.
  • the shank portion 27 and the shank-receiving opening 35 are preferably substantially circularly cylindrical over at least a portion of their length.
  • the shank portion 127 may have a truncated cone shape, and the shank-receiving opening 135 may have a shape corresponding to the shape of the shank portion.
  • the truncated cone shape of the shank portion 127 facilitates insertion of the shank portion into the shank-receiving opening 135 , even if the toolholder 21 is not fully heated.
  • an angle ⁇ that a side of the shank portion 127 forms with a perpendicular to the base of the shank portion at the base 29 of the cutting portion is less than 2°.
  • the radial shoulder 43 of the cutting portion 25 and the radial shoulder 45 of the toolholder 21 can be provided with interengaging members 47 and 49 , respectively.
  • the interengaging members 47 and 49 may be in the form of, for example, at least one ridge and at least one ridge receiving recess. If desired or necessary, a plurality of interengaging members, such as a toothed pattern, can be provided.
  • the interengaging members 47 and 49 can assist in transmitting torque from the toolholder 21 to the cutting portion 25 , and vice-versa.
  • the insert 23 preferably includes a shoulder 43 at the base 29 of the cutting portion 25 to assist in locating the insert relative to the toolholder 21 .
  • a shoulder 43 at the base 29 of the cutting portion 25 to assist in locating the insert relative to the toolholder 21 .
  • FIG. 14 shows the toolholder 21 used with a grinder 123
  • FIG. 15 shows the toolholder used with a straight drill bit or milling insert 223 . It will be appreciated that a variety of other tools can be adapted for use in connection with the present invention by providing a shank portion 27 extending from a workpiece contacting portion of the tool.
  • FIG. 16 shows still a further aspect of the present invention.
  • the toolholder 121 in FIG. 16 is provided with one or more internal channels 101 that are connectable at an outlet 103 to a source of hydraulic fluid, preferably by a manifold arrangement. Portions of the channels 101 surround the shank-receiving opening 35 and, after a shank portion 27 of an insert 23 is positioned in the shank-receiving opening, hydraulic fluid is pressurized in the channels 101 to cause the thinner wall portions of the toolholder between the shank-receiving opening and the channels to deflect inwardly and secure the shank portion.
  • the channels 101 are preferably at least partially defined by a sleeve that defines the shank-receiving opening 35 and is inserted in a larger opening in a main portion of the toolholder, such as is disclosed in U.S. Pat. No. 5,030,048, the disclosure of which is incorporated by reference. If desired, the technique of providing a heated liquid that expands as it solidifies, as disclosed in U.S. Pat. No. 5,030,048, can be followed instead of the technique-of providing pressurized hydraulic fluid.
  • 16 may also be heated, as in the other embodiments of the toolholder disclosed herein, to permit insertion of the shank portion 27 in the shank-receiving opening and so that the combined gripping effect from the hydraulic arrangement shown in FIG. 16 and the contracted material of the toolholder function to grip the shank of the insert.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Knives (AREA)
  • Gripping On Spindles (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)
US10/168,375 1999-12-22 2000-12-14 Toolholder and insert arrangement with a shrink fit coupling Expired - Fee Related US6871859B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9904752-4 1999-12-22
SE9904752A SE9904752D0 (sv) 1999-12-22 1999-12-22 Toolholder and insert arrangement with a shrink fit coupling
PCT/SE2000/002530 WO2001045883A2 (fr) 1999-12-22 2000-12-14 Ensemble porte-outil et tete amovible a montage ajuste par contraction

Publications (2)

Publication Number Publication Date
US20030075879A1 US20030075879A1 (en) 2003-04-24
US6871859B2 true US6871859B2 (en) 2005-03-29

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ID=20418278

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/168,375 Expired - Fee Related US6871859B2 (en) 1999-12-22 2000-12-14 Toolholder and insert arrangement with a shrink fit coupling

Country Status (8)

Country Link
US (1) US6871859B2 (fr)
EP (1) EP1239984B1 (fr)
JP (1) JP2003517940A (fr)
KR (1) KR20020061009A (fr)
CN (1) CN1230275C (fr)
DE (1) DE60028241T2 (fr)
SE (1) SE9904752D0 (fr)
WO (1) WO2001045883A2 (fr)

Cited By (11)

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US20020097879A1 (en) * 2001-01-22 2002-07-25 Takashi Hasegawa Broadcasting method and broadcast receiver
US20040258494A1 (en) * 2003-06-17 2004-12-23 Robert Unsworth Novel shrink fit holder and methods of drilling and reaming
US20050238451A1 (en) * 2004-04-22 2005-10-27 Parlec, Inc. System for mounting a machine tool in a tool holder
US20080075552A1 (en) * 2006-09-19 2008-03-27 David Legge Tube end milling head
US20090022563A1 (en) * 2007-07-02 2009-01-22 Stephen Nerone System for removing boiler tube stubs
US20090091091A1 (en) * 2007-10-03 2009-04-09 Kennametal Inc. Shrink fit sleeve for tool holder
US20090261646A1 (en) * 2008-04-22 2009-10-22 Kennametal Inc. Indexable Cutting Tool System
US20100071959A1 (en) * 2008-09-25 2010-03-25 Baker Hughes Inc. Threaded cone retention system for roller cone bits
US20100143051A1 (en) * 2007-03-23 2010-06-10 Guehring Ohg Ball raceway milling device, tool having a ball raceway milling device, and method for the application of a ball raceway milling device
US20110193299A1 (en) * 2007-02-08 2011-08-11 Seco Tools Ab Shrink-fit tool with mechanical retention member, and method of mounting a tool to a toolholder
US20190134717A1 (en) * 2016-04-27 2019-05-09 Karl Schuessler Gmbh & Co. Kg Shrink-fit chuck

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001019558A1 (fr) * 1999-09-16 2001-03-22 Rego-Fix Ag Dispositif pour le retrait thermique d'outils
SE524557C2 (sv) * 2002-03-21 2004-08-24 Sandvik Ab Roterande verktyg samt skärdel med flexibla organ fasthållningsorgan samt medbringare
DE10222445A1 (de) * 2002-05-22 2003-12-04 Horn P Hartmetall Werkzeugfab Schneidplatte für ein Bearbeitungswerkzeug sowie Halter für eine derartige Schneidplatte
DE112006000779T5 (de) * 2005-03-29 2008-02-07 Hanita Metal Works Ltd. Schrumpfpassungswerkzeughalter
DE102005028368A1 (de) * 2005-06-20 2006-12-28 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Ventilsitz- und Ventilführungsbearbeitungswerkzeug
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WO2001045883A3 (fr) 2002-01-10
EP1239984B1 (fr) 2006-05-24
KR20020061009A (ko) 2002-07-19
SE9904752D0 (sv) 1999-12-22
JP2003517940A (ja) 2003-06-03
DE60028241D1 (de) 2006-06-29
EP1239984A2 (fr) 2002-09-18
CN1413137A (zh) 2003-04-23
CN1230275C (zh) 2005-12-07
DE60028241T2 (de) 2007-03-15
WO2001045883A2 (fr) 2001-06-28
US20030075879A1 (en) 2003-04-24

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